src/converter.C

   1 /* This file is part of
   2  * ======================================================
   3  *
   4  *           LyX, The Document Processor
   5  *
   6  *           Copyright 1995 Matthias Ettrich
   7  *           Copyright 1995-2001 The LyX Team.
   8  *
   9  * ====================================================== */
  10
  11 #include <config.h>
  12
  13 #ifdef __GNUG__
  14 #pragma implementation
  15 #endif
  16
  17 #include <cctype>
  18
  19 #include "converter.h"
  20 #include "lyxrc.h"
  21 #include "buffer.h"
  22 #include "bufferview_funcs.h"
  23 #include "LaTeX.h"
  24 #include "frontends/LyXView.h"
  25 #include "lyx_cb.h" // ShowMessage()
  26 #include "gettext.h"
  27 #include "BufferView.h"
  28 #include "debug.h"
  29
  30 #include "frontends/Alert.h"
  31
  32 #include "support/filetools.h"
  33 #include "support/lyxfunctional.h"
  34 #include "support/path.h"
  35 #include "support/systemcall.h"
  36
  37 #ifndef CXX_GLOBAL_CSTD
  38 using std::isdigit;
  39 #endif
  40
  41 using std::vector;
  42 using std::queue;
  43 using std::endl;
  44 using std::fill;
  45 using std::find_if;
  46 using std::reverse;
  47 using std::sort;
  48
  49 namespace {
  50
  51 string const token_from("$$i");
  52 string const token_base("$$b");
  53 string const token_to("$$o");
  54
  55 //////////////////////////////////////////////////////////////////////////////
  56
  57 inline
  58 string const add_options(string const & command, string const & options)
  59 {
  60         string head;
  61         string const tail = split(command, head, ' ');
  62         return head + ' ' + options + ' ' + tail;
  63 }
  64
  65 } // namespace anon
  66
  67 //////////////////////////////////////////////////////////////////////////////
  68
  69 bool Format::dummy() const
  70 {
  71         return extension().empty();
  72 }
  73
  74
  75 bool Format::isChildFormat() const
  76 {
  77         if (name_.empty())
  78                 return false;
  79         return isdigit(name_[name_.length() - 1]);
  80 }
  81
  82
  83 string const Format::parentFormat() const
  84 {
  85         return name_.substr(0, name_.length() - 1);
  86 }
  87
  88 //////////////////////////////////////////////////////////////////////////////
  89
  90 // This method should return a reference, and throw an exception
  91 // if the format named name cannot be found (Lgb)
  92 Format const * Formats::getFormat(string const & name) const
  93 {
  94         FormatList::const_iterator cit =
  95                 find_if(formatlist.begin(), formatlist.end(),
  96                         lyx::compare_memfun(&Format::name, name));
  97         if (cit != formatlist.end())
  98                 return &(*cit);
  99         else
 100                 return 0;
 101 }
 102
 103
 104 int Formats::getNumber(string const & name) const
 105 {
 106         FormatList::const_iterator cit =
 107                 find_if(formatlist.begin(), formatlist.end(),
 108                         lyx::compare_memfun(&Format::name, name));
 109         if (cit != formatlist.end())
 110                 return cit - formatlist.begin();
 111         else
 112                 return -1;
 113 }
 114
 115
 116 void Formats::add(string const & name)
 117 {
 118         if (!getFormat(name))
 119                 add(name, name, name, string());
 120 }
 121
 122
 123 void Formats::add(string const & name, string const & extension,
 124                   string const & prettyname, string const & shortcut)
 125 {
 126         FormatList::iterator it =
 127                 find_if(formatlist.begin(), formatlist.end(),
 128                         lyx::compare_memfun(&Format::name, name));
 129         if (it == formatlist.end())
 130                 formatlist.push_back(Format(name, extension, prettyname,
 131                                             shortcut, ""));
 132         else {
 133                 string viewer = it->viewer();
 134                 *it = Format(name, extension, prettyname, shortcut, viewer);
 135         }
 136 }
 137
 138
 139 void Formats::erase(string const & name)
 140 {
 141         FormatList::iterator it =
 142                 find_if(formatlist.begin(), formatlist.end(),
 143                         lyx::compare_memfun(&Format::name, name));
 144         if (it != formatlist.end())
 145                 formatlist.erase(it);
 146 }
 147
 148
 149 void Formats::sort()
 150 {
 151         std::sort(formatlist.begin(), formatlist.end());
 152 }
 153
 154
 155 void Formats::setViewer(string const & name, string const & command)
 156 {
 157         add(name);
 158         FormatList::iterator it =
 159                 find_if(formatlist.begin(), formatlist.end(),
 160                         lyx::compare_memfun(&Format::name, name));
 161         if (it != formatlist.end())
 162                 it->setViewer(command);
 163 }
 164
 165
 166 bool Formats::view(Buffer const * buffer, string const & filename,
 167                    string const & format_name) const
 168 {
 169         if (filename.empty())
 170                 return false;
 171
 172         Format const * format = getFormat(format_name);
 173         if (format && format->viewer().empty() &&
 174             format->isChildFormat())
 175                 format = getFormat(format->parentFormat());
 176         if (!format || format->viewer().empty()) {
 177                 Alert::alert(_("Cannot view file"),
 178                            _("No information for viewing ")
 179                            + prettyName(format_name));
 180                            return false;
 181         }
 182
 183         string command = format->viewer();
 184
 185         if (format_name == "dvi" &&
 186             !lyxrc.view_dvi_paper_option.empty()) {
 187                 command += " " + lyxrc.view_dvi_paper_option;
 188                 string paper_size = converters.papersize(buffer);
 189                 if (paper_size == "letter")
 190                         paper_size = "us";
 191                 command += " " + paper_size;
 192                 if (buffer->params.orientation
 193                     == BufferParams::ORIENTATION_LANDSCAPE)
 194                         command += 'r';
 195         }
 196
 197         command += " " + QuoteName(OnlyFilename((filename)));
 198
 199         lyxerr[Debug::FILES] << "Executing command: " << command << endl;
 200         ShowMessage(buffer, _("Executing command:"), command);
 201
 202         Path p(OnlyPath(filename));
 203         Systemcall one;
 204         int const res = one.startscript(Systemcall::DontWait, command);
 205
 206         if (res) {
 207                 Alert::alert(_("Cannot view file"),
 208                            _("Error while executing"),
 209                            command.substr(0, 50));
 210                 return false;
 211         }
 212         return true;
 213 }
 214
 215
 216 string const Formats::prettyName(string const & name) const
 217 {
 218         Format const * format = getFormat(name);
 219         if (format)
 220                 return format->prettyname();
 221         else
 222                 return name;
 223 }
 224
 225
 226 string const Formats::extension(string const & name) const
 227 {
 228         Format const * format = getFormat(name);
 229         if (format)
 230                 return format->extension();
 231         else
 232                 return name;
 233 }
 234
 235 //////////////////////////////////////////////////////////////////////////////
 236
 237 void Converter::readFlags()
 238 {
 239         string flag_list(flags);
 240         while (!flag_list.empty()) {
 241                 string flag_name, flag_value;
 242                 flag_list = split(flag_list, flag_value, ',');
 243                 flag_value = split(flag_value, flag_name, '=');
 244                 if (flag_name == "latex")
 245                         latex = true;
 246                 else if (flag_name == "originaldir")
 247                         original_dir = true;
 248                 else if (flag_name == "needaux")
 249                         need_aux = true;
 250                 else if (flag_name == "resultdir")
 251                         result_dir = (flag_value.empty())
 252                                 ? token_base : flag_value;
 253                 else if (flag_name == "resultfile")
 254                         result_file = flag_value;
 255                 else if (flag_name == "parselog")
 256                         parselog = flag_value;
 257         }
 258         if (!result_dir.empty() && result_file.empty())
 259                 result_file = "index." + formats.extension(to);
 260         //if (!contains(command, token_from))
 261         //      latex = true;
 262 }
 263
 264
 265 bool operator<(Converter const & a, Converter const & b)
 266 {
 267         int const i = compare_no_case(a.From->prettyname(),
 268                                       b.From->prettyname());
 269         if (i == 0)
 270                 return compare_no_case(a.To->prettyname(), b.To->prettyname())
 271                         < 0;
 272         else
 273                 return i < 0;
 274 }
 275
 276 //////////////////////////////////////////////////////////////////////////////
 277
 278 class compare_Converter {
 279 public:
 280         compare_Converter(string const & f, string const & t)
 281                 : from(f), to(t) {}
 282         bool operator()(Converter const & c) {
 283                 return c.from == from && c.to == to;
 284         }
 285 private:
 286         string const & from;
 287         string const & to;
 288 };
 289
 290
 291 Converter const * Converters::getConverter(string const & from,
 292                                             string const & to)
 293 {
 294         ConverterList::const_iterator cit =
 295                 find_if(converterlist_.begin(), converterlist_.end(),
 296                         compare_Converter(from, to));
 297         if (cit != converterlist_.end())
 298                 return &(*cit);
 299         else
 300                 return 0;
 301 }
 302
 303
 304 int Converters::getNumber(string const & from, string const & to)
 305 {
 306         ConverterList::const_iterator cit =
 307                 find_if(converterlist_.begin(), converterlist_.end(),
 308                         compare_Converter(from, to));
 309         if (cit != converterlist_.end())
 310                 return cit - converterlist_.begin();
 311         else
 312                 return -1;
 313 }
 314
 315
 316 void Converters::add(string const & from, string const & to,
 317                      string const & command, string const & flags)
 318 {
 319         formats.add(from);
 320         formats.add(to);
 321         ConverterList::iterator it = find_if(converterlist_.begin(),
 322                                              converterlist_.end(),
 323                                              compare_Converter(from, to));
 324
 325         Converter converter(from, to, command, flags);
 326         if (it != converterlist_.end() && !flags.empty() && flags[0] == '*') {
 327                 converter = *it;
 328                 converter.command = command;
 329                 converter.flags = flags;
 330         }
 331         converter.readFlags();
 332
 333         if (converter.latex && (latex_command_.empty() || to == "dvi"))
 334                 latex_command_ = subst(command, token_from, "");
 335         // If we have both latex & pdflatex, we set latex_command to latex.
 336         // The latex_command is used to update the .aux file when running
 337         // a converter that uses it.
 338
 339         if (it == converterlist_.end()) {
 340                 converterlist_.push_back(converter);
 341         } else {
 342                 converter.From = it->From;
 343                 converter.To = it->To;
 344                 *it = converter;
 345         }
 346 }
 347
 348
 349 void Converters::erase(string const & from, string const & to)
 350 {
 351         ConverterList::iterator it = find_if(converterlist_.begin(),
 352                                              converterlist_.end(),
 353                                              compare_Converter(from, to));
 354         if (it != converterlist_.end())
 355                 converterlist_.erase(it);
 356 }
 357
 358
 359 // This method updates the pointers From and To in all the converters.
 360 // The code is not very efficient, but it doesn't matter as the number
 361 // of formats and converters is small.
 362 // Furthermore, this method is called only on startup, or after
 363 // adding/deleting a format in FormPreferences (the latter calls can be
 364 // eliminated if the formats in the Formats class are stored using a map or
 365 // a list (instead of a vector), but this will cause other problems).
 366 void Converters::update(Formats const & formats)
 367 {
 368         ConverterList::iterator it = converterlist_.begin();
 369         ConverterList::iterator end = converterlist_.end();
 370         for (; it != end; ++it) {
 371                 it->From = formats.getFormat(it->from);
 372                 it->To = formats.getFormat(it->to);
 373         }
 374 }
 375
 376
 377 // This method updates the pointers From and To in the last converter.
 378 // It is called when adding a new converter in FormPreferences
 379 void Converters::updateLast(Formats const & formats)
 380 {
 381         if (converterlist_.begin() != converterlist_.end()) {
 382                 ConverterList::iterator it = converterlist_.end() - 1;
 383                 it->From = formats.getFormat(it->from);
 384                 it->To = formats.getFormat(it->to);
 385         }
 386 }
 387
 388
 389 void Converters::sort()
 390 {
 391         std::sort(converterlist_.begin(), converterlist_.end());
 392 }
 393
 394
 395 int Converters::bfs_init(string const & start, bool clear_visited)
 396 {
 397         int const s = formats.getNumber(start);
 398         if (s < 0)
 399                 return s;
 400
 401         Q_ = queue<int>();
 402         if (clear_visited)
 403                 fill(visited_.begin(), visited_.end(), false);
 404         if (visited_[s] == false) {
 405                 Q_.push(s);
 406                 visited_[s] = true;
 407         }
 408         return s;
 409 }
 410
 411
 412 vector<Format const *> const
 413 Converters::getReachableTo(string const & target, bool clear_visited)
 414 {
 415         vector<Format const *> result;
 416         int const s = bfs_init(target, clear_visited);
 417         if (s < 0)
 418                 return result;
 419
 420         while (!Q_.empty()) {
 421                 int const i = Q_.front();
 422                 Q_.pop();
 423                 if (i != s || target != "lyx") {
 424                         result.push_back(&formats.get(i));
 425                 }
 426
 427                 vector<int>::iterator it = vertices_[i].in_vertices.begin();
 428                 vector<int>::iterator end = vertices_[i].in_vertices.end();
 429                 for (; it != end; ++it) {
 430                         if (!visited_[*it]) {
 431                                 visited_[*it] = true;
 432                                 Q_.push(*it);
 433                         }
 434                 }
 435         }
 436
 437         return result;
 438 }
 439
 440
 441 vector<Format const *> const
 442 Converters::getReachable(string const & from, bool only_viewable,
 443                          bool clear_visited)
 444 {
 445         vector<Format const *> result;
 446
 447         if (bfs_init(from, clear_visited) < 0)
 448                 return result;
 449
 450         while (!Q_.empty()) {
 451                 int const i = Q_.front();
 452                 Q_.pop();
 453                 Format const & format = formats.get(i);
 454                 if (format.name() == "lyx")
 455                         continue;
 456                 if (!only_viewable || !format.viewer().empty() ||
 457                     format.isChildFormat())
 458                         result.push_back(&format);
 459
 460                 vector<int>::const_iterator cit =
 461                         vertices_[i].out_vertices.begin();
 462                 vector<int>::const_iterator end =
 463                         vertices_[i].out_vertices.end();
 464                 for (; cit != end; ++cit)
 465                         if (!visited_[*cit]) {
 466                                 visited_[*cit] = true;
 467                                 Q_.push(*cit);
 468                         }
 469         }
 470
 471         return result;
 472 }
 473
 474
 475 bool Converters::isReachable(string const & from, string const & to)
 476 {
 477         if (from == to)
 478                 return true;
 479
 480         int const s = bfs_init(from);
 481         int const t = formats.getNumber(to);
 482         if (s < 0 || t < 0)
 483                 return false;
 484
 485         while (!Q_.empty()) {
 486                 int const i = Q_.front();
 487                 Q_.pop();
 488                 if (i == t)
 489                         return true;
 490
 491                 vector<int>::const_iterator cit =
 492                         vertices_[i].out_vertices.begin();
 493                 vector<int>::const_iterator end =
 494                         vertices_[i].out_vertices.end();
 495                 for (; cit != end; ++cit) {
 496                         if (!visited_[*cit]) {
 497                                 visited_[*cit] = true;
 498                                 Q_.push(*cit);
 499                         }
 500                 }
 501         }
 502
 503         return false;
 504 }
 505
 506
 507 Converters::EdgePath const
 508 Converters::getPath(string const & from, string const & to)
 509 {
 510         EdgePath path;
 511         if (from == to)
 512                 return path;
 513
 514         int const s = bfs_init(from);
 515         int t = formats.getNumber(to);
 516         if (s < 0 || t < 0)
 517                 return path;
 518
 519         vector<int> prev_edge(formats.size());
 520         vector<int> prev_vertex(formats.size());
 521
 522         bool found = false;
 523         while (!Q_.empty()) {
 524                 int const i = Q_.front();
 525                 Q_.pop();
 526                 if (i == t) {
 527                         found = true;
 528                         break;
 529                 }
 530
 531                 vector<int>::const_iterator beg =
 532                         vertices_[i].out_vertices.begin();
 533                 vector<int>::const_iterator cit = beg;
 534                 vector<int>::const_iterator end =
 535                         vertices_[i].out_vertices.end();
 536                 for (; cit != end; ++cit)
 537                         if (!visited_[*cit]) {
 538                                 int const j = *cit;
 539                                 visited_[j] = true;
 540                                 Q_.push(j);
 541                                 int const k = cit - beg;
 542                                 prev_edge[j] = vertices_[i].out_edges[k];
 543                                 prev_vertex[j] = i;
 544                         }
 545         }
 546         if (!found)
 547                 return path;
 548
 549         while (t != s) {
 550                 path.push_back(prev_edge[t]);
 551                 t = prev_vertex[t];
 552         }
 553         reverse(path.begin(), path.end());
 554         return path;
 555 }
 556
 557
 558 bool Converters::usePdflatex(EdgePath const & path)
 559 {
 560         for (EdgePath::const_iterator cit = path.begin();
 561              cit != path.end(); ++cit) {
 562                 Converter const & conv = converterlist_[*cit];
 563                 if (conv.latex)
 564                         return contains(conv.to, "pdf");
 565         }
 566         return false;
 567 }
 568
 569
 570 bool Converters::convert(Buffer const * buffer,
 571                          string const & from_file, string const & to_file_base,
 572                          string const & from_format, string const & to_format,
 573                          string & to_file)
 574 {
 575         to_file = ChangeExtension(to_file_base,
 576                                   formats.extension(to_format));
 577
 578         if (from_format == to_format)
 579                 return move(from_file, to_file, false);
 580
 581         EdgePath edgepath = getPath(from_format, to_format);
 582         if (edgepath.empty()) {
 583                 return false;
 584         }
 585
 586         string path = OnlyPath(from_file);
 587         Path p(path);
 588
 589         bool run_latex = false;
 590         string from_base = ChangeExtension(from_file, "");
 591         string to_base = ChangeExtension(to_file, "");
 592         string infile;
 593         string outfile = from_file;
 594         for (EdgePath::const_iterator cit = edgepath.begin();
 595              cit != edgepath.end(); ++cit) {
 596                 Converter const & conv = converterlist_[*cit];
 597                 bool dummy = conv.To->dummy() && conv.to != "program";
 598                 if (!dummy)
 599                         lyxerr[Debug::FILES] << "Converting from  "
 600                                << conv.from << " to " << conv.to << endl;
 601                 infile = outfile;
 602                 outfile = conv.result_dir.empty()
 603                         ? ChangeExtension(from_file, conv.To->extension())
 604                         : AddName(subst(conv.result_dir,
 605                                         token_base, from_base),
 606                                   subst(conv.result_file,
 607                                         token_base, OnlyFilename(from_base)));
 608
 609                 if (conv.latex) {
 610                         run_latex = true;
 611                         string command = subst(conv.command, token_from, "");
 612                         lyxerr[Debug::FILES] << "Running " << command << endl;
 613                         if (!runLaTeX(buffer, command))
 614                                 return false;
 615                 } else {
 616                         if (conv.need_aux && !run_latex
 617                             && !latex_command_.empty()) {
 618                                 lyxerr[Debug::FILES]
 619                                         << "Running " << latex_command_
 620                                         << " to update aux file"<<  endl;
 621                                 runLaTeX(buffer, latex_command_);
 622                         }
 623
 624                         string infile2 = (conv.original_dir)
 625                                 ? infile : MakeRelPath(infile, path);
 626                         string outfile2 = (conv.original_dir)
 627                                 ? outfile : MakeRelPath(outfile, path);
 628
 629                         string command = conv.command;
 630                         command = subst(command, token_from, QuoteName(infile2));
 631                         command = subst(command, token_base, QuoteName(from_base));
 632                         command = subst(command, token_to, QuoteName(outfile2));
 633
 634                         if (!conv.parselog.empty())
 635                                 command += " 2> " + QuoteName(infile2 + ".out");
 636
 637                         if (conv.from == "dvi" && conv.to == "ps")
 638                                 command = add_options(command,
 639                                                       dvips_options(buffer));
 640                         else if (conv.from == "dvi" && prefixIs(conv.to, "pdf"))
 641                                 command = add_options(command,
 642                                                       dvipdfm_options(buffer));
 643
 644                         lyxerr[Debug::FILES] << "Calling " << command << endl;
 645                         if (buffer)
 646                                 ShowMessage(buffer, _("Executing command:"), command);
 647
 648                         Systemcall::Starttype type = (dummy)
 649                                 ? Systemcall::DontWait : Systemcall::Wait;
 650                         Systemcall one;
 651                         int res;
 652                         if (conv.original_dir && buffer) {
 653                                 Path p(buffer->filePath());
 654                                 res = one.startscript(type, command);
 655                         } else
 656                                 res = one.startscript(type, command);
 657
 658                         if (!conv.parselog.empty()) {
 659                                 string const logfile =  infile2 + ".log";
 660                                 string const script = LibScriptSearch(conv.parselog);
 661                                 string const command2 = script +
 662                                         " < " + QuoteName(infile2 + ".out") +
 663                                         " > " + QuoteName(logfile);
 664                                 one.startscript(Systemcall::Wait, command2);
 665                                 if (!scanLog(buffer, command, logfile))
 666                                         return false;
 667                         }
 668
 669                         if (res) {
 670                                 if (conv.to == "program")
 671                                         Alert::alert(_("There were errors during the Build process."),
 672                                                    _("You should try to fix them."));
 673                                 else
 674                                         Alert::alert(_("Cannot convert file"),
 675                                                    "Error while executing",
 676                                                    command.substr(0, 50));
 677                                 return false;
 678                         }
 679                 }
 680         }
 681
 682         Converter const & conv = converterlist_[edgepath.back()];
 683         if (conv.To->dummy())
 684                 return true;
 685
 686
 687         if (!conv.result_dir.empty()) {
 688                 to_file = AddName(subst(conv.result_dir, token_base, to_base),
 689                                   subst(conv.result_file,
 690                                         token_base, OnlyFilename(to_base)));
 691                 if (from_base != to_base) {
 692                         string from = subst(conv.result_dir,
 693                                             token_base, from_base);
 694                         string to = subst(conv.result_dir,
 695                                           token_base, to_base);
 696                         if (!lyx::rename(from, to)) {
 697                                 Alert::alert(_("Error while trying to move directory:"),
 698                                            from, ("to ") + to);
 699                                 return false;
 700                         }
 701                 }
 702                 return true;
 703         } else
 704                 return move(outfile, to_file, conv.latex);
 705 }
 706
 707 // If from = /path/file.ext and to = /path2/file2.ext2 then this method
 708 // moves each /path/file*.ext file to /path2/file2*.ext2'
 709 bool Converters::move(string const & from, string const & to, bool copy)
 710 {
 711         if (from == to)
 712                 return true;
 713
 714         bool no_errors = true;
 715         string const path = OnlyPath(from);
 716         string const base = OnlyFilename(ChangeExtension(from, ""));
 717         string const to_base = ChangeExtension(to, "");
 718         string const to_extension = GetExtension(to);
 719
 720         vector<string> files = DirList(OnlyPath(from), GetExtension(from));
 721         for (vector<string>::const_iterator it = files.begin();
 722              it != files.end(); ++it)
 723                 if (prefixIs(*it, base)) {
 724                         string const from2 = path + *it;
 725                         string to2 = to_base + it->substr(base.length());
 726                         to2 = ChangeExtension(to2, to_extension);
 727                         lyxerr[Debug::FILES] << "moving " << from2
 728                                              << " to " << to2 << endl;
 729                         bool const moved = (copy)
 730                                 ? lyx::copy(from2, to2)
 731                                 : lyx::rename(from2, to2);
 732                         if (!moved && no_errors) {
 733                                 Alert::alert(_("Error while trying to move file:"),
 734                                            from2, _("to ") + to2);
 735                                 no_errors = false;
 736                         }
 737                 }
 738         return no_errors;
 739 }
 740
 741
 742 bool Converters::convert(Buffer const * buffer,
 743                         string const & from_file, string const & to_file_base,
 744                         string const & from_format, string const & to_format)
 745 {
 746         string to_file;
 747         return convert(buffer, from_file, to_file_base, from_format, to_format,
 748                        to_file);
 749 }
 750
 751
 752 void Converters::buildGraph()
 753 {
 754         vertices_ = vector<Vertex>(formats.size());
 755         visited_.resize(formats.size());
 756
 757         for (ConverterList::iterator it = converterlist_.begin();
 758              it != converterlist_.end(); ++it) {
 759                 int const s = formats.getNumber(it->from);
 760                 int const t = formats.getNumber(it->to);
 761                 vertices_[t].in_vertices.push_back(s);
 762                 vertices_[s].out_vertices.push_back(t);
 763                 vertices_[s].out_edges.push_back(it - converterlist_.begin());
 764         }
 765 }
 766
 767
 768 bool Converters::formatIsUsed(string const & format)
 769 {
 770         ConverterList::const_iterator cit = converterlist_.begin();
 771         ConverterList::const_iterator end = converterlist_.end();
 772         for (; cit != end; ++cit) {
 773                 if (cit->from == format || cit->to == format)
 774                         return true;
 775         }
 776         return false;
 777 }
 778
 779
 780 bool Converters::scanLog(Buffer const * buffer, string const & command,
 781                         string const & filename)
 782 {
 783         if (!buffer)
 784                 return false;
 785
 786         BufferView * bv = buffer->getUser();
 787         if (bv) {
 788                 bv->owner()->prohibitInput();
 789                 // all error insets should have been removed by now
 790         }
 791
 792         LaTeX latex("", filename, "");
 793         TeXErrors terr;
 794         int result = latex.scanLogFile(terr);
 795         if (bv) {
 796                 if ((result & LaTeX::ERRORS)) {
 797                         // Insert all errors as errors boxes
 798                         bv->insertErrors(terr);
 799 #warning repaint() or update() or nothing ?
 800                         bv->repaint();
 801                         bv->fitCursor();
 802                 }
 803                 bv->owner()->allowInput();
 804         }
 805
 806         if ((result & LaTeX::ERRORS)) {
 807                 int num_errors = latex.getNumErrors();
 808                 string s;
 809                 string t;
 810                 if (num_errors == 1) {
 811                         s = _("One error detected");
 812                         t = _("You should try to fix it.");
 813                 } else {
 814                         s = tostr(num_errors);
 815                         s += _(" errors detected.");
 816                         t = _("You should try to fix them.");
 817                 }
 818                 string head;
 819                 split(command, head, ' ');
 820                 Alert::alert(_("There were errors during running of ") + head,
 821                            s, t);
 822                 return false;
 823         } else if (result & LaTeX::NO_OUTPUT) {
 824                 string const s = _("The operation resulted in");
 825                 string const t = _("an empty file.");
 826                 Alert::alert(_("Resulting file is empty"), s, t);
 827                 return false;
 828         }
 829         return true;
 830 }
 831
 832
 833 bool Converters::runLaTeX(Buffer const * buffer, string const & command)
 834 {
 835         if (!buffer)
 836                 return false;
 837
 838         BufferView * bv = buffer->getUser();
 839
 840         if (bv) {
 841                 bv->owner()->prohibitInput();
 842                 bv->owner()->message(_("Running LaTeX..."));
 843                 // all the autoinsets have already been removed
 844         }
 845
 846         // do the LaTeX run(s)
 847         string name = buffer->getLatexName();
 848         LaTeX latex(command, name, buffer->filePath());
 849         TeXErrors terr;
 850         int result = latex.run(terr,
 851                                bv ? bv->owner()->getLyXFunc() : 0);
 852
 853         if (bv) {
 854                 if ((result & LaTeX::ERRORS)) {
 855                         // Insert all errors as errors boxes
 856                         bv->insertErrors(terr);
 857 #warning repaint() or update() or nothing ?
 858                         bv->repaint();
 859                         bv->fitCursor();
 860                 }
 861         }
 862
 863         // check return value from latex.run().
 864         if ((result & LaTeX::NO_LOGFILE)) {
 865                 Alert::alert(_("LaTeX did not work!"),
 866                            _("Missing log file:"), name);
 867         } else if ((result & LaTeX::ERRORS)) {
 868                 int num_errors = latex.getNumErrors();
 869                 string s;
 870                 string t;
 871                 if (num_errors == 1) {
 872                         s = _("One error detected");
 873                         t = _("You should try to fix it.");
 874                 } else {
 875                         s = tostr(num_errors);
 876                         s += _(" errors detected.");
 877                         t = _("You should try to fix them.");
 878                 }
 879                 Alert::alert(_("There were errors during the LaTeX run."),
 880                            s, t);
 881         }  else if (result & LaTeX::NO_OUTPUT) {
 882                 string const s = _("The operation resulted in");
 883                 string const t = _("an empty file.");
 884                 Alert::alert(_("Resulting file is empty"), s, t);
 885         }
 886
 887         if (bv)
 888                 bv->owner()->allowInput();
 889
 890         int const ERROR_MASK =
 891                         LaTeX::NO_LOGFILE |
 892                         LaTeX::ERRORS |
 893                         LaTeX::NO_OUTPUT;
 894
 895         return (result & ERROR_MASK) == 0;
 896
 897 }
 898
 899
 900 string const Converters::papersize(Buffer const * buffer)
 901 {
 902         char real_papersize = buffer->params.papersize;
 903         if (real_papersize == BufferParams::PAPER_DEFAULT)
 904                 real_papersize = lyxrc.default_papersize;
 905
 906         switch (real_papersize) {
 907         case BufferParams::PAPER_A3PAPER:
 908                 return "a3";
 909         case BufferParams::PAPER_A4PAPER:
 910                 return "a4";
 911         case BufferParams::PAPER_A5PAPER:
 912                 return "a5";
 913         case BufferParams::PAPER_B5PAPER:
 914                 return "b5";
 915         case BufferParams::PAPER_EXECUTIVEPAPER:
 916                 return "foolscap";
 917         case BufferParams::PAPER_LEGALPAPER:
 918                 return "legal";
 919         case BufferParams::PAPER_USLETTER:
 920         default:
 921                 return "letter";
 922         }
 923 }
 924
 925
 926 string const Converters::dvips_options(Buffer const * buffer)
 927 {
 928         string result;
 929         if (!buffer)
 930                 return result;
 931
 932         if (buffer->params.use_geometry
 933             && buffer->params.papersize2 == BufferParams::VM_PAPER_CUSTOM
 934             && !lyxrc.print_paper_dimension_flag.empty()
 935             && !buffer->params.paperwidth.empty()
 936             && !buffer->params.paperheight.empty()) {
 937                 // using a custom papersize
 938                 result = lyxrc.print_paper_dimension_flag;
 939                 result += ' ' + buffer->params.paperwidth;
 940                 result += ',' + buffer->params.paperheight;
 941         } else {
 942                 string const paper_option = papersize(buffer);
 943                 if (paper_option != "letter" ||
 944                     buffer->params.orientation != BufferParams::ORIENTATION_LANDSCAPE) {
 945                         // dvips won't accept -t letter -t landscape.  In all other
 946                         // cases, include the paper size explicitly.
 947                         result = lyxrc.print_paper_flag;
 948                         result += ' ' + paper_option;
 949                 }
 950         }
 951         if (buffer->params.orientation == BufferParams::ORIENTATION_LANDSCAPE &&
 952             buffer->params.papersize2 != BufferParams::VM_PAPER_CUSTOM)
 953                 result += ' ' + lyxrc.print_landscape_flag;
 954         return result;
 955 }
 956
 957
 958 string const Converters::dvipdfm_options(Buffer const * buffer)
 959 {
 960         string result;
 961         if (!buffer)
 962                 return result;
 963
 964         if (buffer->params.papersize2 != BufferParams::VM_PAPER_CUSTOM) {
 965                 string const paper_size = papersize(buffer);
 966                 if (paper_size != "b5" && paper_size != "foolscap")
 967                         result = "-p "+ paper_size;
 968
 969                 if (buffer->params.orientation == BufferParams::ORIENTATION_LANDSCAPE)
 970                         result += " -l";
 971         }
 972
 973         return result;
 974 }
 975
 976
 977 vector<Converters::Vertex> Converters::vertices_;
 978
 979
 980 /// The global instance
 981 Formats formats;
 982 Converters converters;
 983
 984 // The global copy after reading lyxrc.defaults
 985 Formats system_formats;
 986 Converters system_converters;